• Support PF! Buy your school textbooks, materials and every day products Here!

Quantum oscillator

  • Thread starter GreenLRan
  • Start date
  • #1
61
0

Homework Statement



Assuming a pendulum to behave like a quantum oscillator, what are the energy differences between the quantum states of a pendulum of length 1m? Are such differences observable?

Homework Equations





The Attempt at a Solution



would the energy differences just be 1 since for each energy state n you have E_n=(n+1/2)h_bar*sqrt(k/m)? This would not be observable either since these are such low energies... correct?
 

Answers and Replies

  • #2
340
0
Compare E_n to E_n+1
 
  • #3
Meir Achuz
Science Advisor
Homework Helper
Gold Member
2,171
65
I think they want you to calculate the energy in joules.
 
  • #4
236
0
But wouldn't they have provide him with the mass of the pendulum?
in his statement they only gave him the length , I think it's like robb said , a comparison between E_n and E_n+1
 
  • #5
11
0
No they don't, it's a pendulum in harmonic oscillation, so you can say its angular frequency is simply sqrt(g/L), then solve for (1/2)hw
 

Related Threads on Quantum oscillator

  • Last Post
Replies
3
Views
999
  • Last Post
Replies
1
Views
2K
Replies
0
Views
849
  • Last Post
Replies
9
Views
4K
  • Last Post
Replies
15
Views
880
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
1K
Top